I asked about replace my platform from AMD Phenom x4 965 to Intel i7 950 for need of rendering in CAD and 3DMax.
Is there any notice increasing in performance for rendering time?
thanks for help me.
Depending on your overall system (board, RAM, graphics card, etc...) The i7-950 is not that much faster than your 965. There really isn't a need to change. If you overclock that 965 slightly, it will match up more with that i7 and you will save a lot of money.
There isn't any need to replace what you have unless you are going to go with an i5-2500k which is much faster than the i7-950... you would just need to wait for Intel to get the boards back on the market in a about 2 months.
If you just look at the 3dmax scores in the benchmarks, linked above, then there is a substantial gain from I7 950 over the 965BE. Whether it is worth the money is a question you will have to answer.
On average the AMD is only 5 seconds or so behind the much more expensive i7-950. That is not really that substantial to replace what he has. That's like buying a new car that can only go 100 mph and wanting to change it for a much higher priced car that can go 110 mph. Unless he maxes the system 24/7, those sheer seconds don't add up to much (surely less than 15 minutes in the whole work day). As for the 2500k, that will wipe the 965 away and offers clear justification to replace the 965. But if you only consider 3D scores alone, there is also not a huge benefit from the 2500k, just 1-2 seconds over the i7-950... but over all system responsiveness and performance is 25% better than both and it is cheaper than the i7-950.
You get no reason to throw away a system you already have and waste so much money to save 20 minutes overall in a month.
Instead of counting it in seconds when looking at the performance difference it averages between 30-40% in 3dmax, for some people time is money and the savings can be lot more than 20min in a month!
Nobody has told the OP to buy a new system, I just pointed out to him to use his own judgment if the performance increase is worth the money!